Suspected jewel thief Germain Ibrahim Fofana left his cell phone at the scene of the crime

In London, British police believe they know who made off with $30,000 worth of jewelery from a shop in Kingston on Sunday. The suspected thief, who stole two diamond rings and a wedding band, left behind his cellphone, which had a photo of himself set as the wallpaper.

The 27 year old suspect is Germain Ibrahim Fofana of France, and according to Police, he is believed to be responsible for other jewelery heists around London.

Authorities said Fofana entered the store with a woman pushing a child in a stroller, and the pair looked at engagement rings. The suspect returned by himself about 30 minutes later and looked at the rings again. He then ran out of the store with the rings, but left his phone behind.